How to Upgrade Lumia Phones to Windows 10 TP for Phones

Microsoft has already released Technical Preview version of Windows 10 for Phones. I’ve upgraded Lumia 630 from Windows Phone 8.1 (Lumia Cyan) to Windows 10 for Phones TP2. The Windows 10 upgrade (on Lumia 630) process is bit lengthy and it’s obvious because there are two upgrades happening in the background. To upgrade Lumia Phone’s OS to Windows 10 for Phones, your phone needs to have Windows Phone 8.1.1 (Lumia Denim). So, when your phone doesn’t have Windows Phone 8.1.1 then Microsoft will upgrade Lumia phone OS from Windows Phone 8.1 (Lumia Cyan) to Windows Phone 8.1.1 (Lumia Denim). Once your Lumia phone is upgraded to Windows 8.1.1 then Microsoft will start 2nd stage of upgrade and that is Windows Phone 8.1.1 OS will get upgraded to Windows 10 TP 2 for Phone. Don’t worry you don’t need to go through two upgrades manually, the Windows 10 TP upgrade for phone will take care of Windows 8.1.1 upgrade as well. I’ve included 2 tutorial videos (in this post) to help with Windows 10 for Phone upgrade process!

Here are some pointers and tips which will help in the Windows Mobile phone upgrade process !

1) Check whether Windows 10 for phone TP2 is released for your phone or not. The supported phone for now is “Lumia 630, Lumia 635, Lumia 636, Lumia 638, Lumia 730 and Lumia 830”. Microsoft will release the Windows 10 preview for more devices in coming months.

2) If your phone is in the list, install an application called Windows Insiders (more details –> How to).

3) Join Windows Insiders program.

4) Download and update your phone.

You need to complete the steps mentioned in the following post to reach “this phase” of Windows 10 upgrade for Phones –> How to Upgrade Windows Phone to Window 10 Preview

Tap on “Get Preview builds” and follow the screens to be part of insider program. There are two options (1. Insider slow and 2. Insider fast) given while joining Insider program. I’ve selected insider fast so that I can get Windows 10 for Phone updates very fast.

Windows Insiders APP

Following video will guide to get there. This video will cover the first stage of the process “Upgrade of Lumia 630 Windows Phone 8.1 to Windows Phone 8.1.1“.


Lumia 630 phone OS will get upgraded to Windows 8.1.1. This is the first phase of Windows 10 TP upgrade. This will install Windows Phone 8.1 (8.10.14219.341) on to Lumia 630 phone. Tap on Install to get ahead!

Windows Phone 8.1 (8.10.14219.341)

After the install, the phone will get rebooted. So that is it, you’ve completed the 1st stage. Your Lumia phone is upgraded to Lumia Denim (Version 8.10.14219.341).


Now your Lumia phone is ready to get upgraded from Lumia Denim to Windows 10 Phone TP2 (this is phase 2 of upgrade). The following video will help you to understand the exact process of Lumia 630 OS upgrade to Windows 10 for Phone.


Tap on Install button as you can see in the following picture. This will start the Windows 10 for Phone upgrade process for Lumia 630. Windows 10 Technical Preview for Phones version is 9941.12498.


Ok, here you go, Lumia 630 is successfully upgraded to Windows 10 Technical Preview for Phones (version is 9941.12498).


See more details about Windows 10 for phone on my Lumia 630 , Coming soon !!

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